Episode 1 – Pilot – Original Air Date – 09/24/2007
TV Ratings : 9.57 Million Viewers | Adults 18-49: 3.7/9
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"Pilot" – When Leonard and Sheldon meet new neighbor Penny, Leonard is excited, but Sheldon is less enthusiastic for he feels his friend is only chasing a dream he'll never catch, on THE BIG BANG THEORY, premiering on Monday, Sept. 24 (8:30-9:00 PM, ET/PT).
THE BIG BANG THEORY is a comedy about brilliant physicists, Leonard (Galecki) and Sheldon (Parsons), who are the kind of "beautiful minds" that understand how the universe works. But none of that genius helps them interact with people, especially women. All this begins to change when a free-spirited beauty named Penny (Cuoco) moves in next door. Sheldon, Leonard's roommate, is quite content spending his nights playing Klingon Boggle with their socially dysfunctional friends, fellow Cal Tech scientists Wolowitz (Helberg) and Koothrappali (Nayyar). However, Leonard sees in Penny a whole new universe of possibilities… including love.
WRITERS: Chuck Lorre and Bill Prady, co-creators and executive producers
DIRECTED BY: James Burrows
Episode 2 – The Big Bran Hypothesis – Original Air Date – 10/01/2007
TV Ratings : 8.58 Million Viewers | Adults 18-49: 3.4/8
"The Big Bran Hypothesis" – Leonard volunteers to sign for a package, hoping to make a good impression on Penny. When he enlists the help of his obsessive-compulsive roommate, Sheldon, his attempt at chivalry goes horribly awry, on THE BIG BANG THEORY, Monday, Oct. 1 (8:30-9:00 ET/PT) on the CBS Television Network.
GUEST CAST:
Leslie…………………………………….. Sara Gilbert
Doug……………………………………. Allen Nabors
Instructor……………………………. Sherry Weston
Waitress…………………………………. Treisa Gary
STORY BY: Chuck Lorre and Bill Prady, series creators and executive producers
TELEPLAY BY: Robert Cohen and Dave Goetsch
DIRECTED BY: Mark Cendrowski
Episode 3 - The Fuzzy Boots Corollary – Original Air Date – 10/08/2007
TV Ratings : 8.36 Million Viewers | Adults 18-49: 3.4/8
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"The Fuzzy Boots Corollary" – Leonard is bummed to learn that his crush, Penny, is seeing someone, so encouraged by his friends and fellow scientists, Leonard actually summons the nerve to ask a woman out on a date, on THE BIG BANG THEORY, Monday, Oct. 8 (8:30-9:00 ET/PT) on the CBS Television Network.
GUEST CAST:
Leslie…………………………………….. Sara Gilbert
Doug……………………………………. Allen Nabors
Instructor……………………………. Sherry Weston
Waitress…………………………………. Treisa Gary
STORY BY: Chuck Lorre, one of the series creators and executive producers
TELEPLAY BY: Bill Prady & Steven Molaro
DIRECTED BY: Mark Cendrowski
Episode 4 - The Luminous Fish Effect – Original Air Date – 10/15/2007
TV Ratings : 8.15 Million Viewers | Adults 18-49: 3.2/8
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"The Luminous Fish Effect" – When Sheldon gets fired, he explores life beyond physics, but his initial thrill of shopping with Penny devolves over time to him weaving ponchos as a shut-in, forcing Leonard to call on Sheldon's mother, on THE BIG BANG THEORY, Monday, Oct. 15 (8:30-9:00 ET/PT) on the CBS Television Network.
GUEST CAST:
Mary………………………………….. Laurie Metcalf
Dr. Eric Gablehauser………………. Mark Harelik
Summer…………………………….. Sierra Edwards
STORY BY: Chuck Lorre & Bill Prady, series creators and executive producers
TELEPLAY BY: David Litt & Lee Aronsohn
DIRECTED BY: Bob Koherr
Episode 5 - The Hamburger Postulate – Original Air Date – 10/22/2007
TV Ratings : 8.72 Million Viewers | Adults 18-49: 3.5/9
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"The Hamburger Postulate"- After sensing his pursuit of Penny isn't going anywhere, Leonard agrees to an unexpected sexual encounter with fellow scientist Leslie Winkle (guest star Sara Gilbert), on THE BIG BANG THEORY, Monday, Oct. 22 (8:30-9:00 ET/PT) on the CBS Television Network.
GUEST CAST:
Leslie…………………………………….. Sara Gilbert
STORY BY: Jennifer Glickman
TELEPLAY BY: David Goetsch and Steven Molaro
DIRECTED BY: Andrew D. Weyman
Episode 6 - The Middle Earth Paradigm – Original Air Date – 10/29/2007
TV Ratings : 8.92 Million Viewers | Adults 18-49: 3.6/9
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"The Middle Earth Paradigm" - Leonard, Sheldon, Wolowitz and Koothrappali undertake a challenging and risky experiment-attending the Halloween party being thrown by their hot neighbor, Penny, on THE BIG BANG THEORY, Monday Oct. 29, (8:30-9:00 ET/PT), on the CBS Television Network.
GUEST CAST:
Kurt……………………………. Brian Patrick Wade
Patty…………………………………. Rachel Cannon
Cheryl……………………………. Erin Allin O'Reilly
Vicki…………………… Kimberly Kevon Williams
Roberta………………………….. Cynthia Holloway
STORY BY: David Goetcsh
TELEPLAY BY: David Litt & Robert Cohen
DIRECTED BY: Mark Cendrowski
Episode 7 - The Dumpling Paradox – Original Air Date – 11/05/2007
TV Ratings : 9.67 Million Viewers | Adults 18-49: 3.8/9
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"The Dumpling Paradox" – When Wolowitz seduces Penny's friend and takes over her apartment, Penny sleeps on Leonard and Sheldon's couch. With Wolowitz preoccupied, the guys discover they are without a fourth member of their group and in desperation, they ask Penny to join their Halo team, on THE BIG BANG THEORY, Monday Nov. 5 (8:30-9:00 PM, ET/PT) on the CBS Television Network.
GUEST CAST:
Christy…………………………….. Brooke D'Orsay
Chen……………………………………… James Hong
Mrs. Wolowitz……………………. Carol Ann Susi
STORY BY: Chuck Lorre & Bill Prady, Series' Creators and Executive Producers
TELEPLAY BY: Lee Aronsohn & Jennifer Glickman
DIRECTED BY: Mark Cendrowski
Episode 8 - The Grasshopper Experiment – Original Air Date – 11/12/2007
TV Ratings : 9.39 Million Viewers | Adults 18-49: 3.8/9
"The Grasshopper Experiment" – Koothrappali is overwhelmed after his parents arrange a blind date, but he discovers he actually can talk to the opposite sex after a few drinks; however, complications set in when his beautiful date is more interested in Sheldon, on THE BIG BANG THEORY, Monday, Nov. 12 (8:30-9:00 PM, ET/PT) on the CBS Television Network.
GUEST CAST:
Lalita……………………………………… Sarayu Rao
Dr. Koothrappali……………………. Brian George
Mrs. Koothrappali……………………. Alice Amter
STORY BY: Dave Goetsch & Steven Molaro
TELEPLAY BY: Lee Aronsohn & Robert Cohen
DIRECTED BY: Tedd Wass
Episode 9 - The Cooper-Hofstadter Polarization – Original Air Date – 03/17/2008
"The Cooper-Hofstadter Polarization" – When Sheldon and Leonard are invited to present their joint findings at a physics conference, Sheldon refuses, and Penny steps in to mediate … only deepening the rift between the two best friends, on THE BIG BANG THEORY, in its new time period, Monday, March 17 (8:00-8:30 PM, ET/PT) on the CBS Television Network.
GUEST CAST:
Chinese Leonard……………………… Talbott Chin
Chinese Sheldon…………………… Howard Chan
STORY BY: Bill Prady and Stephen Engel
TELEPLAY BY: Chuck Lorre, Lee Aronsohn and Dave Goetsch
DIRECTED BY: Joel Murray
Episode 10 – The Loobenfeld Decay – Original Air Date – 03/24/2008
"The Loobenfeld Decay" – After hearing Penny sing, Leonard lies to avoid seeing her perform, but Sheldon takes it one step further with a more elaborate lie that leads to the appearance of his non-existent cousin, on THE BIG BANG THEORY, Monday March 24 (8:00-8:30 PM, ET/PT) on the CBS Television Network.
GUEST CAST:
Toby………………………………………. D.J. Qualls
STORY BY: Chuck Lorre, one of the series' creators and executive producers
TELEPLAY BY: Bill Prady, one of the series' creators and executive producers, & Lee Aronsohn
DIRECTED BY: Mark Cendrowski
Episode 11 – The Pancake Batter Anomaly – Original Air Date – 03/31/2008
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"The Pancake Batter Anomaly" – When Sheldon gets sick, Leonard and the boys know what's in store and avoid him like the plague, leaving an unsuspecting Penny to nurse the world's worst patient back to health, on THE BIG BANG THEORY, Monday, March 31 (8:00-8:30 PM, ET/PT) on the CBS Television Network.
GUEST CAST:
Mrs. Wolowitz
(Off Screen)……………………… Carol Ann Susi
Cheryl……………………………. Erin Allin O'Reilly
STORY BY: Chuck Lorre, one of the series' creators and executive producers, and Lee Aronsohn
Episode 12 – The Jerusalem Duality – Original Air Date – 04/14/2008
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"The Jerusalem Duality" – When Leonard and Sheldon meet a 15-year-old physics prodigy, Sheldon is distraught that this boy genius is younger and smarter, so in an attempt to restore his sense of purpose, the boys come up with a solution to derail Dennis' research, on THE BIG BANG THEORY, Monday, April 14 (8:00-8:30 ET/PT) on the CBS Television Network.
GUEST CAST:
Dr. Eric Gablehauser ……………… Mark Harelik
Dennis Kim………………………………. Austin Lee
Professor Goldfarb…………………… Joel Brooks
Emma…………………………….. Emma Degerstedt
STORY BY: Jennifer Glickman & Stephen Engel
TELEPLAY BY: Dave Goetsch & Steven Molaro
DIRECTED BY: Mark Cendrowski
Episode 13 – The Bat Jar Conjecture – Original Air Date – 04/21/2008
"The Bat Jar Conjecture" – Since Sheldon's only focus is to prove his mental superiority while preparing for the Physics Bowl, the guys kick him off the team and enlist his nemesis Leslie Winkle, on THE BIG BANG THEORY, Monday, April 21 (8:00-8:30 ET/PT) on the CBS Television Network.
GUEST CAST:
Leslie Winkle………………………….. Sara Gilbert
Dr. Eric Gablehauser………………. Mark Harelik
Dimitri…………………………………. Adam Gregor
Woman……………………………. Sandra Marquez
Son……………………………………. Sergio Enrique
STORY BY: Stephen Engel & Jennifer Glickman
TELEPLAY BY: Bill Prady, one of the series' executive producers & Robert Cohen
DIRECTED BY: Mark Cendrowski
Episode 14 – The Nerdvana Annihilation – Original Air Date – 04/28/2008
"The Nerdvana Annihilation" – When Leonard and the guys buy a time machine prop from a classic 1960 movie, its arrival creates problems for Penny and she tells the boys that their obsession with comics and toys is "pathetic," on THE BIG BANG THEORY, Monday, April 28 (8:00-8:30 PM, ET/PT) on the CBS Television Network.
GUEST CAST:
Mike ……………………………….. Andrew Walker
STORY BY: Bill Prady, one of the series' executive producers
TELEPLAY BY: Stephen Engel & Steven Molaro
DIRECTED BY: Mark Cendrowski
Episode 15 – The Shiksa Indeterminacy – Original Air Date – 05/05/2008
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"The Shiksa Indeterminacy" – When Leonard, Wolowitz, and Koothrappali all become smitten with Sheldon's twin sister, Leonard devises a plan to eliminate his rivals, however, it backfires when Sheldon declares he will decide whom his sister dates, on THE BIG BANG THEORY, Monday, May 5 (8:00-8:30 ET/PT) on the CBS Television Network.
GUEST CAST:
Missy …………………………. Courtney Henggeler
STORY BY: Chuck Lorre, one of the series' executive producers
TELEPLAY BY: Lee Aronsohn & Bill Prady, one of the series' executive producers
DIRECTED BY: Mark Cendrowski
Episode 16 – The Peanut Reaction – Original Air Date – 05/12/2008
"The Peanut Reaction" – When Penny learns that Leonard doesn't celebrate birthdays, she attempts to throw him a surprise party, but is sidetracked by Sheldon who unexpectedly gets to live out one of his greatest fantasies at an electronics store, on THE BIG BANG THEORY, Monday, May 12 (8:00-8:30 ET/PT) on the CBS Television Network.
GUEST CAST:
Althea……………………………….. Vernee Watson
Jan…………………………………… Judith Moreland
Dan……………………………………. Ronald Hunter
Stan…………………………………….. Chuck Carter
STORY BY: Bill Prady, one of the series' executive producers and Lee Aronsohn
TELEPLAY BY: Dave Goetsch & Steven Molaro
DIRECTED BY: Mark Cendrowski
Ratings Are Taken From The Fast National Ratings – Live Plus Same Day